ES2952879T3 - Charging method, mobile device, charging device and charging system - Google Patents

Abstract

Embodiments of the present invention relate to a charging method, a mobile device and a charging device. The mobile device includes a battery and a connector, where the connector includes a charging pin and a ground pin; and when the charging pin establishes a connection with an output pin of the charging device through the use of a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin. of the charging device, and transmits the first signal current to an anode pin of the battery, to charge the battery. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Charging method, mobile device, charging device and charging system

The present application claims priority of Chinese Patent Application No. 201310018595.9, filed with the China Patent Office on January 18, 2013 and titled "CHARGING METHOD, MOBILE DEVICE, CHARGING DEVICE AND CHARGING SYSTEM", which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present invention relates to the field of communications technologies and, in particular, to a charging method, a mobile device, a charging device and a charging system.

BACKGROUND

Currently, a user usually connects a mobile device (such as a mobile phone or a tablet) to an external power source using a charging device (such as a charger), to implement charging of the mobile device; or a user connects a mobile device to an external device using a universal serial bus USB port (Universal Serial Bus, USB for short), which can also implement data exchange between the mobile device and the external device or implement mobile device charging.

Current charging circuits are grouped on one side of a mobile device; Therefore, calculating according to the highest conversion efficiency of 93% of a charging circuit in a current ideal situation, a charging circuit on the mobile device side generates a heat loss of 0.7W, which which causes a heat generation problem during a charging process of the mobile device, thus bringing discomfort to a user in use.

Furthermore, with the rapid development of mobile devices, the battery capacities of mobile devices are increasing and shorter charging time is required. If a conventional charging circuit is still used to charge a mobile device, the charging time is excessively long. Therefore, a USB power supply standard is added to the latest USB standard, a supply voltage is increased to 20V and a supply current is increased to 5A, to quickly charge a mobile device in a short time. . However, due to a significant increase in the supply voltage and supply current, a heat generation problem during a mobile device charging process is more serious. When a current of 20V/5A is provided for a mobile device according to the latest USB power supply standard, a charging circuit on the side of the mobile device generates a heat loss of 7W, and this loss of heat, cannot be supported by a current mobile device.

To solve a problem of current heat generation during a charging process of a mobile device and to make the mobile device adapt to a charging mode in which a supply voltage and a supply current have been increased, cooling measures such as graphite coupling or air cooling on the side of the mobile device, to reduce a heat loss generated during the charging process of the mobile device. However, in this method, a volume of the mobile device is increased, and when a charging current continues to increase, the heat loss of the mobile device cannot be radically reduced, which are limitations of the prior art.

Document US20090174366A1 describes a mobile electronic device that functions to employ a rechargeable battery as a power source that includes a peripheral port suitable for connecting an external device to the mobile electronic device and a power management device that functions in a first mode as a charger of battery to recharge the battery from an external power source and further usable in a second mode as a boost converter to power the external device from the power supplied by the battery wherein the boost converter and the battery charger are provided by a single switching converter. US20050174094A1 describes that a battery charger may include a charger connector for coupling to a corresponding device connector of a portable device, which includes a rechargeable battery. The battery charger may also include a charging circuit connected to the charger connector and a controller connected to the charger connector and the charging circuit. The controller may cause a portable device connected to the charger connector to identify its corresponding portable device type and its corresponding rechargeable battery type from among a plurality of different types of portable devices and different types of batteries, and to cause the charging circuit charge the rechargeable battery based on these.

SUMMARY

The present invention provides a mobile device according to any one of claims 1 to 8 and a charging method according to any of claims 9 to 13 and a system according to claim 14. Below, embodiments not covered by the claims will be considered as useful examples for understanding the invention.

Embodiments of the present invention provide a charging method, a mobile device, a charging device and a charging system, which are used to implement charging of a mobile device with a high current, reduce the heat loss of the mobile device as much as possible, facilitate a user's use and resolve limitations in the prior art.

According to a first aspect, an embodiment of the present invention provides a mobile device, wherein the mobile device includes a battery and a connector; where

The connector includes a charging pin and a ground pin; and

When the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin of the charging device. charges and transmits the first current signal to an anode pin of the battery, to charge the battery.

In a first possible embodiment, the mobile device further includes an analog switch;

When the charging pin establishes a connection with the output pin of the charging device using a charging cable or battery charging stand, the analog switch connects the anode pin of the battery with the charging pin; and

The charging pin receives the first current signal transmitted by the output pin of the charging device and transmits the first current signal to the anode pin of the battery using the analog switch, to charge the battery.

With reference to the first possible way of implementing the first aspect, in a second possible way of implementing, the mobile device further includes a charging circuit and a USB universal serial bus port;

When the charging pin is disconnected from the output pin of the charging device, the analog switch disconnects the anode pin of the battery from the charging pin and an output pin of the charging circuit is connected to the anode pin of the battery using the analog switch; and

An input pin of the charging circuit is connected to the USB port, receives a second current signal transmitted by the USB port, and transmits the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch, to charge the battery.

With reference to the first aspect or the first or the second possible way of implementing the first aspect, in a third possible way of implementation, the mobile device further includes a controller and a voltage conversion circuit, where

With one end connected to the charging pin and the other end connected to the controller, the voltage conversion circuit is configured to: when the charging pin establishes a connection with the output pin of the charging device using a charging cable or a Support battery charging, convert a voltage of the charging pin and then transmit a converted voltage to the controller.

With reference to the third possible way of implementing the first aspect, in a fourth possible way of implementing, the controller further includes a bus port and the connector further includes a single-wire or multi-wire bus pin, where

The bus port is connected to the single-wire or multi-wire bus pin of the connector using a bus and is configured to transmit bus data or a control signal generated by the controller, so that the charging device adjusts the first output current signal after receiving the bus data or control signal.

With reference to the first aspect or the first, second, third or fourth possible way of implementing the first aspect, in a fifth possible way of implementation, the ground pin is connected to a first ground pin of the charging device using the charging cable or battery charging stand; and

the ground pin, a ground pin of the battery and a ground pin of the charging circuit are connected to each other.

With reference to the first aspect or the first, second, third, fourth or fifth possible implementation ways of the first aspect, in a sixth possible implementation way, the connector is specifically a multi-pin port, a multi-pin port or a port multiplexed with the USB port using the analog switch.

According to a second aspect, an embodiment of the present invention provides a charging device, where the charging device includes a switching charger module and a charging circuit, where

the charging circuit includes an input pin and an output pin;

the input pin is connected to an output pin of the switching charger module and is configured to receive a first current signal transmitted by the output pin of the switching charger module; and The output pin establishes a connection with a charging pin of a mobile device using a charging cable or a battery charging stand, to use the first current signal to charge a battery of the mobile device.

In a first possible way of implementation, the charging circuit also includes a bus port;

the bus port is connected to a single-wire or multi-wire bus pin of a connector on the mobile device using a bus and is configured to receive bus data or a control signal transmitted by the mobile device; and

The charging circuit is further configured to adjust the first current signal according to the bus data or control signal.

With reference to the second aspect or the first possible way of implementing the second aspect, in a second possible way of implementation, the charging circuit further includes a first ground pin and a second ground pin; where

the first ground pin is connected to a ground pin of the mobile device using the charging cable or battery charging stand; and

The second ground pin is connected to a ground pin of the switching charging module.

With reference to the second aspect or the first or the second possible way of implementing the second aspect, in a third possible way of implementation, the charging circuit is specifically a charging switching circuit or a linear charging circuit.

According to a third aspect, an embodiment of the present invention provides a charging method, wherein the charging method includes:

receive, via a charging pin of a connector when the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, a first current signal transmitted by the pin charging device output; and

transmit, through the charging pin, the first current signal to an anode pin of the battery, to charge the battery.

In a first possible way of implementation, after receiving, by a charging pin of a connector when the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand , a first current signal transmitted by the output pin of the charging device and prior to transmission, by the charging pin, of the first current signal to an anode pin of the battery, the method further includes:

connect, through an analog switch, the anode pin of the battery to the charging pin.

With reference to the third aspect or the first possible way of implementing the third aspect, in a second possible way of implementation, the method further includes:

When the charging pin of the connector is disconnected from the output pin of the charging device, disconnect, by the analog switch, the battery anode pin from the charging pin and connect an output pin of a charging circuit to the charging pin. battery anode using the analog switch;

receiving, through an input pin of the charging circuit, a second current signal using a USB port; and

transmit, through the input pin of the charging circuit, the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch, to charge the battery.

With reference to the third aspect or the first or the second possible way of implementing the third aspect, in a third possible way of implementation, the method further includes:

generating, by a controller, bus data or a control signal; and

transmitting, by the controller, the bus data or the control signal to the charging device, so that the charging device adjusts the first output current signal.

According to a fourth aspect, an embodiment of the present invention provides a charging system, where the charging system includes the mobile device according to the first aspect of the present invention or with any of the six possible ways of implementing the first aspect and the charging device according to the second aspect of the present invention or with any of the three possible ways of implementing the second aspect.

Therefore, through an application of the charging method, the mobile device, the charging device and the charging system provided in the embodiments of the present invention, the mobile device is connected to the charging device using a cable charging device or a battery charging stand and receives a high current transmitted by the charging device, to charge a battery of the mobile device. Furthermore, a charging circuit that provides high current is not included in the mobile device, but exists in the charging device, which makes the mobile device only receive a high current, to reduce a heat loss of the mobile device as much as possible. In addition, a problem of heat generation during a charging process of a mobile device is solved in the prior art, the mobile device also adapts to a charging mode in which a supply voltage and a supply current have been increased. and, also, a solution is enriched in the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a mobile device according to Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a mobile device according to Embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of a mobile device according to Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a mobile device according to Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of a mobile device according to Embodiment 5 of the present invention;

FIG. 6 is a schematic structural diagram of a loading device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a connection system of a mobile device and a charging device according to an embodiment of the present invention; and

FIG. 8 is a flow chart of a loading method according to an embodiment of the present invention.

DESCRIPTION OF THE EMBODIMENTS

In order to make the objectives, technical solutions and advantages of the present invention more evident, the following further describes the embodiments of the present invention in detail, with reference to the accompanying drawings. The following uses FIG. 1 as an example to describe a mobile device provided in an embodiment of the present invention, wherein FIG. 1 is a schematic structural diagram of the mobile device according to this embodiment of the present invention.

An implementation body of the embodiment shown in FIG. 1 is the mobile device. In FIG. 1, the mobile device includes the following components: a battery 110 and a connector 120.

The connector includes a V1 charging pin and a G1 ground pin.

When the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin of the charging device. charges and transmits the first current signal to an anode pin of the battery, to charge the battery.

Specifically, in this embodiment of the present invention, one end of the charging pin of the connector is connected to the anode pin of the battery and the other end is connected to the output pin of the charging device using the charging cable or charging stand. battery charge.

The charging cable is specifically a current signal that can withstand high voltage and high current. As an example rather than a limitation, the charging cable can specifically withstand a high current signal of 25V/5A and, in addition, can withstand a high current signal that exceeds 25V/5A in a real application.

It should be noted that, in this embodiment of the present invention, the charging device is a charging device that provides electrical power, includes a charging circuit, and may be connected to a common power source. As an example rather than a limitation, to implement high current charging, the charging circuit in the charging device may provide a high current signal and the first current signal may be, specifically, a high current signal. of 5 A.

The mobile device in this embodiment of the present invention can directly receive, using the connector, a high current provided by the charging device, to shorten a charging time. In addition, there is no charging circuit that provides high current in the mobile device, but it exists in the charging device, making the mobile device only receive high current to reduce heat loss as much as possible.

Therefore, by means of a mobile device application provided in this embodiment of the present invention, the mobile device is connected to the charging device using a charging cable or a battery charging stand and receives a high current transmitted by the charging device, to charge a mobile device battery. In addition, a charging circuit that provides high current is not included in the mobile device, but exists in the charging device, which makes the mobile device only receive high current to reduce the heat loss of the mobile device as much as may be possible. In addition, a problem of heat generation during a charging process of a mobile device is solved in the prior art, the mobile device also adapts to a charging mode in which a supply voltage and a supply current have been increased. and, also, a solution is enriched in the prior art.

Optionally, based on the above embodiment, the mobile device further includes an analog switch 210. As shown in FIG. 2, the analog switch in FIG. 2 may be a single pole single throw switch and may be specifically implemented using a field effect transistor.

As shown in FIG. 2, an EN tap is driven from the connector's load pin V1 and the EN tap is connected to a switching board of the analog switch. When the charging pin V1 establishes a connection with an output pin V1 of a charging device using a charging cable or battery charging stand, the EN tap voltage changes, triggering the analog switch to closure, to connect the anode pin of the battery to the charging pin V1 of the connector.

When the connector is not connected to a charging device, the analog switch 210 is in a disconnected state and the ground pin G1 of the connector is connected to a ground pin G2 of the battery.

The charging pin receives a first current signal transmitted by the output pin of the charging device and transmits the first current signal to the anode pin of the battery using the analog switch to charge the battery.

Based on the above embodiment, analog switch 210 is added. When the charging pin establishes a connection with the output pin of the charging device using a charging cable or battery charging stand, the analog switch is actuated to connect the anode pin of the battery with the charging pin, which can prevent electrical leakage from the connector when not charging.

It can be understood that the EN tap is driven from the load pin V1 of the connector and the EN tap is connected to the switching junction of the analog switch. If the EN tap voltage jumps from a low electrical level to a high electrical level, it indicates that the charging pin V1 has established a connection with the output pin V1 of the charging device using the charging cable or charging stand. Of battery; If the EN tap voltage jumps from a high electrical level to a low electrical level, it indicates that the charging pin V1 has been disconnected from the output pin V1 of the charging device.

The charging pin V1 establishes a connection with an output pin V1 of an external charging device using a charging cable or a battery charging stand, so that the charging pin V1 receives a first current signal to charge the battery.

Optionally, based on the above embodiment, the mobile device further includes a charging circuit 310 and a USB universal serial bus port 320. As shown in FIG. 3, the analog switch in FIG. 3 is a single pole double throw switch and is specifically implemented using a field effect transistor.

As shown in FIG. 3, when the connector is not connected to a charging device, the anode pin Vbat of the battery is connected to an output pin V2 of the charging circuit using the analog switch, an input pin V3 of the charging circuit is connected to the USB port, a ground pin G3 of the charging circuit, the ground pin G2 of the battery and the ground pin G1 of the connector are connected to each other, and the charging pin V1 of the connector hangs in the air; One end of a voltage conversion circuit is connected to the load pin V1 and the other end is connected to a voltage pin Vdet of a controller.

Based on the above embodiment, the charging circuit and USB universal serial bus port are added. By adding the charging circuit and USB port, when the charging pin V1 is disconnected from an output pin V1 of the charging device, the battery can still be charged using the USB port and also data exchange can be implemented with another mobile device using the USB port.

When the charging pin V1 is disconnected from the output pin V1 of the charging device, the analog switch disconnects the battery anode pin Vbat from the charging pin V1 and the output pin V2 of the charging circuit is connected to the Vbat pin. of the battery anode using the analog switch.

The input pin V3 of the charging circuit is connected to the USB port, receives a second current signal transmitted by the USB port, and transmits the second current signal to the battery anode pin Vbat using the output pin V2 of the charging circuit. charging and the analog switch, to charge the battery

It should be noted that, in this embodiment of the present invention, the charging circuit 310 in the mobile device is configured to provide a direct current signal required by the battery and, specifically, a charging circuit in an existing mobile device can be used. . In order not to cause the mobile device to generate unbearable heat loss due to charging with a high current, the charging circuit in the mobile device is set to provide a low current signal.

It should be noted that, in this embodiment of the present invention, the mobile device (such as a mobile phone or a tablet) can further connect to another mobile device (such as a desktop computer or a laptop) using USB. Port. The other mobile device may be connected to a common power source, to provide electrical power to the mobile device in this embodiment of the present invention. As an example rather than a limitation, the second current signal may specifically be a 2 A low current signal. The charging device in this embodiment includes a charging circuit, where the charging circuit may provide a current signal high, for example, a current signal of 5 A.

The mobile device in this embodiment of the present invention can directly receive, using the connector, a high current provided by the charging device, to shorten a charging time. In addition, there is no charging circuit that provides high current in the mobile device, but it exists in the charging device, making the mobile device only receive high current to reduce heat loss as much as possible. In addition, the charging circuit in the mobile device is a charging circuit that can maintain the low current signal of 2A. Therefore, a heat loss of the mobile device can be further reduced.

It can be understood that, in the mobile device shown in FIG. 3, When the charging pin V1 establishes a connection with the output pin V1 of the charging device using a charging cable or a battery charging stand, it changes the EN shunt voltage.

Specifically, as shown in FIG. 3, the EN tap is driven from the load pin V1 of the connector and the EN tap is connected to the switching junction of the analog switch. If the EN tap voltage jumps from a low electrical level to a high electrical level, it indicates that the charging pin V1 has established a connection with the output pin V1 of the charging device using the charging cable or charging stand. Of battery; If the EN tap voltage jumps from a high electrical level to a low electrical level, it indicates that the charging pin V1 has been disconnected from the output pin V1 of the charging device.

The charging pin V1 establishes a connection with an output pin V1 of an external charging device using a charging cable or a battery charging stand, so that the charging pin V1 receives a first current signal to charge the battery.

Optionally, based on the above embodiment, the mobile device further includes a controller 410 and a voltage conversion circuit 420, as shown in FIG. 4.

With one end connected to the load pin V1 and the other end connected to a voltage Vdet pin of the controller, the voltage conversion circuit is configured for: when the load pin V1 establishes a connection with an output pin of a device charging using a charging cable or a battery charging stand, detect a voltage of the charging pin, convert the voltage, and then transmit a converted voltage to the controller, so that the controller determines that the mobile device established a connection with the charging device.

In this embodiment of the present invention, the voltage conversion circuit adjusts a sensed voltage value of the load pin to a voltage value that the controller can withstand. For example, the voltage of the charging pin is a voltage of about 10V, and the voltage that the controller can support is 2V; Then, the voltage conversion circuit adjusts the voltage of the charging pin to a voltage of 2V that the controller can support, so that the controller determines that the mobile device has established a connection with the charging device.

Optionally, based on the above embodiment, the controller further includes a bus port, the connector further includes a single-wire or multi-wire bus pin, and the charging device includes a bus port ( not clearly shown in FIG. 4).

The bus port of the controller is connected to the single-wire or multi-wire bus pin using a bus, and the single-wire or multi-wire bus pin of the connector also connects to a bus pin of the control device. load using the bus. When the connector is connected to the charging device, the bus port of the controller connects to the bus port of the charging device using the single-wire or multi-wire bus pin of the connector. The bus is configured to transmit bus data or a control signal generated by the controller, so that the pin corresponding to the charging device sets a first output current signal after receiving the bus data or control signal.

In a preferred embodiment, the bus may be an IC I2C bus and the single-wire or multi-wire bus pin included in the connector is an I2C-DATA I2C data pin and an I2C clock pin. I2C-CLK, as shown in FIG. 1.

The I2C data pin I2C-DATA is connected to the bus port of the controller and is configured to transmit I2C data signal or a control signal generated by the controller; The I2C clock pin I2C-CLK is connected to the bus port of the controller and is configured to transmit a clock I2C signal generated by the controller, so that the bus port corresponding to the charging device sets the first clock current signal. output after receiving the I2C data or control signal, and the I2C clock signal.

Specifically, the mobile device transmits using the I2C data pin I2C-DATA and the I2C clock pin I2C-CLK of the connector and the I2C bus, the I2C data or control signal, and the I2C clock signal to the bus port corresponding to the charging device. In one example, after the mobile device establishes a connection with the charging device using a charging cable, charging is performed. During a charging process, when the controller determines that a first current signal provided by the charging device is so high that the mobile device cannot support it, the controller may notify the charging device of a first required current signal by transmitting the I2C data or a control signal, and an I2C clock signal to the charging device, so that the charging device adjusts the first output current signal according to the I2C data or the control signal, and the I2C signal of clock that are received by the corresponding port.

It can be understood that the above describes the working processes of the controller bus port and the connector bus pin using an I2C bus as an example. In a real application, a connection between the bus port of the controller and the single-wire or multi-wire bus pin of the connector is not limited to the use of an I2C bus, and an SPI bus or similar may also be used. .

Optionally, the ground pin G1 of the connector is connected to a first ground pin G1 of the charging device using the charging cable or battery charging stand and the ground pin G1, the ground pin G2 of the battery and the ground pin G3 of the charging circuit are connected together.

Optionally, the connector is specifically a multi-pin port, a multi-pin port or a port multiplexed with the USB port using the analog switch.

Specifically, the connector on the mobile device provided in this embodiment of the present invention may be formed by multiple types of ports, such as a multi-pin port, a multi-pin port, or a port multiplexed with the USB port using the analog switch. As an example rather than a limitation, in FIG. 5, an analog switch and a USB port are multiplexed to serve as a connector, as shown in FIG. 5. In FIG. 5, the analog switch and the USB port are multiplexed to implement connector functions in the above embodiment. A charging process implemented by the mobile device is as follows: when the mobile device does not establish a connection with a charging device, the analog switch connects to the charging circuit of the mobile device by default. The EN tap is driven from the voltage pin of the controller and the EN tap is connected to the switching junction of the analog switch. When the mobile device establishes a connection with the charging device using a charging cable or battery charging stand, the analog switch remains connected to the charging circuit when the controller detects, using USB ID pin, that the mobile device is connected to a computer or other USB device using a USB cable to perform USB charging; When the controller detects, using the USB ID pin, that the mobile device is being charged using the charging device, a tap voltage EN jumps from a low electrical level to a high electrical level and the analog switch is disconnected from the charging circuit and is connected to a Vbat pin of the battery through switching, to complete the charging of the battery. FIG. 5 is just an example to implement the connector functions using another method and there is no limitation on the same in a real application.

In order to make the objectives, technical solutions and advantages of the present invention more evident, the following further describes the embodiments of the present invention in detail, with reference to the accompanying drawings.

The following uses FIG. 6 as an example to describe a charging device provided in an embodiment of the present invention, wherein FIG. 6 is a schematic structural diagram of the loading device according to this embodiment of the present invention.

An implementing organ of the embodiment shown in FIG. 6 is the charging device. As shown in FIG. 6, the charging device includes the following parts: a switching charger module 610 and a charging circuit 620.

In FIG. 6, an output pin V3 and a ground pin G3 of the switching charger module are respectively connected to an input pin V2 and a second ground pin G2 of the charging circuit, an output pin V1 of the charging circuit is connected to a charging pin V1 of a mobile device using a charging cable or a battery charging stand and, a first ground pin G1 of the charging circuit, is connected to a first ground pin G1 of the mobile device using a charging cable or a battery charging stand.

In the charging device, the charging circuit includes output pin V1 and input pin V2.

The input pin V2 is connected to the output pin V3 of the switching charger module and is configured to receive a first current signal transmitted by the output pin V3 of the switching charger module.

The output pin V1 establishes a connection with the charging pin V1 of the mobile device using a charging cable or a battery charging stand, in order to use the first current signal to charge a battery of the mobile device.

Specifically, when the output pin V1 of the charging circuit establishes a connection with the charging pin V1 of the mobile device using a charging cable or a battery charging stand, the output pin V1 transmits a voltage carried to the pin V1 charging, which causes a voltage from a tap EN connected to the charging pin V1 to jump to connect an analog switch on the mobile device to the charging pin V1, so that the first current signal is transmitted to a pin Vbat of Battery anode using the analog switch to charge a power supply on the mobile device.

In this embodiment of the present invention, the charging cable is specifically a current signal that can withstand high voltage and high current. As an example rather than a limitation, the charging cable can specifically support a high current signal of 25V/5A, and in addition, it can support a high current signal exceeding 25V/5A in a real application. .

Furthermore, the switching charger module in this embodiment of the present invention is configured to: connect to a power source, receive an alternating current signal transmitted by the power supply, convert the alternating current signal into a current signal DC and transmit the DC signal to the charging circuit.

The charging circuit is configured to: receive the direct current signal, convert the received direct current signal into a direct current signal required by the battery of the mobile device and transmit, using a charging cable or a battery charger, the direct current signal required by the battery to the mobile device, where the direct current signal required by the battery and transmitted to the mobile device is a first current signal.

The switching charger module is connected to a common power supply and receives an alternating current signal (for example, 220 V alternating current) transmitted by the power supply. The switching charger module converts the AC signal into a DC signal (for example, 110V DC) and transmits the DC signal, which is obtained after conversion, to the input pin V2 of the charging circuit using output pin V3.

The input pin V2 of the charging circuit receives the direct current signal transmitted by the switching charger module, converts, according to a charging curve of the battery of the mobile device, the direct current signal into a direct current signal required by the battery and transmits, using the output pin V1 of the charging circuit and a charging cable or a battery charging stand, the direct current signal required by the battery to the charging pin V1 of the mobile device.

In this document, a battery charging curve is a battery charging characteristic curve. For example, when the battery is empty (battery level is zero), in this case the battery can receive only a low charging current and therefore the charging circuit provides a low current signal for the battery. battery according to the battery charging curve. When there is a certain amount of electricity in the battery (the battery level is 20% of the total battery capacity), in this case, the battery can receive a high current from charging and therefore the charging circuit provides a current signal of a high current to the battery according to the charging curve of the battery.

It should be noted that in this embodiment of the present invention, the charging device is a charging device that provides electrical power and may be connected to a common power source. As an example rather than a limitation, the first current signal may be, specifically a 5 A high current signal. In this embodiment of the present invention, the charging circuit that provides a high current signal is arranged in the charging circuit; Therefore, the mobile device can directly receive, using a connector, a high current provided by the charging device to shorten the charging time, so that the heat loss is reduced as much as possible even if a current is received high.

Optionally, the charging circuit also includes a bus port.

The bus port of the charging circuit is connected to a bus pin of the connector on the mobile device and is configured to receive bus data or a control signal transmitted by the mobile device.

The charging circuit is further configured to adjust the first current signal according to the bus data or the control signal.

In a preferred embodiment, when a bus is an I2C bus, the bus port of the charging circuit includes an I2C data pin I2C-DATA and an I2C clock pin I2C-CLK.

The I2C data pin I2C-DATA on the charging circuit and an I2C data pin I2C-DATA of the connector on the mobile device are configured to receive I2C data or a control signal generated by a controller on the mobile device.

The I2C clock pin I2C-CLK in the charging circuit is connected to an I2C clock pin I2C-CLK of the connector on the mobile device and is configured to receive an I2C clock signal generated by the controller on the mobile device.

The charging circuit is further configured to adjust the first current signal according to the I2C data or control signal, and the I2C clock signal.

Specifically, the mobile device transmits the I2C data or control signal, and the I2C clock signal to the charging device, using the I2C data pin I2C-DATA and the I2C clock pin I2C-CLK of the connector and the I2C bus. . In one example, after the mobile device establishes a physical connection with the charging device using a charging cable, charging is performed. During a charging process, when the controller determines that a first current signal provided by the charging device is so high that the mobile device cannot support it, the controller may notify the charging device of a first required current signal by transmitting the I2C data or a control signal, and an I2C clock signal to the charging device, so that the charging device adjusts the output signal of the first current according to the I2C data or the control signal, and the signal I2C clocks are received and then transmit a first set current signal to an anode pin V1 of the connector on the mobile device by reusing the charging cable.

It can be understood that the above describes a working process of the charging circuit bus port using an I2C bus as an example. In a real application, a bus type is not limited to an I2C bus and can also be an SPI bus or similar. Optionally, the charging circuit also includes the first ground pin G1 and the second ground pin G2.

The first G1 ground pin is connected to the G1 ground pin of the mobile device using a charging cable or battery charging stand.

The second ground pin G2 is connected to the ground pin G3 of the switching charger module.

Optionally, the charging circuit is specifically a switching charging circuit or a linear charging circuit.

Specifically, in this embodiment of the present invention, a charging circuit that can provide a high current is arranged in the charging device to reduce a heat loss of a mobile device. However, a heat loss of the charging device easily occurs in a case where a charging circuit providing a high current is arranged in the charging device; Therefore, in this embodiment of the present invention, the charging circuit can be specifically established as a switching charging circuit or a linear charging circuit, to reduce the heat loss of the charging device. Well the circuit Switching load or linear load circuit, is a circuit well known to one skilled in the art and, therefore, the details are not described again herein.

Therefore, through an application of the charging device provided in this embodiment of the present invention, a charging circuit that can provide a high current is added to the charging device to transmit a high current to a mobile device using a charging cable, which makes the mobile device only receive high current, to reduce the heat loss of the mobile device as much as possible. In addition, a problem of heat generation during a charging process of a mobile device is solved in the prior art, the mobile device also adapts to a charging mode in which a supply voltage and a supply current have been increased. and, also, a solution is enriched in the prior art.

In the above multiple embodiments, a mobile device and a charging device are used separately as implementation organs to briefly describe the charging processes. Furthermore, the charging processes described in the above embodiments can be completed using a schematic diagram of a connection system of a mobile device and a charging device shown in FIG. 7. As shown in FIG. 7, the mobile terminal includes the above multiple components, and a specific charging process is as follows:

The above has described a connection relationship between pins within a mobile device and those within a charging device, and the details are not described again herein. When a charging pin V1 establishes a connection with an output pin V1 of the charging device using a charging cable or a battery charging stand, an analog switch connects an anode pin Vbat of a battery to the pin V1 of burden; The charging pin V1 receives a first current signal transmitted by the output pin V1 of the charging device and transmits the first current signal to the anode pin Vbat of the battery using the analog switch to charge the battery.

Furthermore, the mobile device can perform a communication exchange with the charging device by using an I2C bus, and the mobile device transmits an I2C data signal and an I2C control signal to the charging device using the I2C bus, mode that the charging device adjusts an output current signal.

The above describes a charging process performed after a mobile device establishes a connection with a charging device using a charging cable. When the mobile device is disconnected from the charging device (not shown in the figure), the mobile device can receive a second current signal from a USB port using a charging circuit of the mobile device to charge a battery. Charging a battery using a USB port is the previous technique; therefore, the details are not described again herein.

In order to make the objectives, technical solutions and advantages of the present invention more evident, the following describes in detail the embodiments of the present invention with reference to the accompanying drawings.

The following uses FIG. 8 as an example to describe a loading method provided in an embodiment of the present invention, wherein FIG. 8 is a flow chart of the loading method according to this embodiment of the present invention. The charging method provided in this embodiment of the present invention is based on the mobile device and the charging device described in the previous embodiments.

As shown in FIG. 8, the charging method specifically includes the following steps:

Step 810: When a charging pin of a connector establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin of the charging device.

Furthermore, in this embodiment of the present invention, one end of the charging pin of the connector is connected to an anode pin of the battery and the other end is connected to the output pin of the charging device using a charging cable or a bracket. battery charging. The charging cable is specifically a current signal that can withstand high voltage and high current. As an example rather than a limitation, the charging cable can specifically support a high current signal of 25V/5A, and in addition, it can support a high current signal exceeding 25V/5A in a real application. .

It should be noted that in this embodiment of the present invention, the charging device is a charging device that provides electrical power and may be connected to a common power source. As an example rather than a limitation, the first current signal may specifically be a 5 A high current signal.

Step 820: The charging pin transmits the first current signal to the battery anode pin to charge the battery.

Specifically, the charging pin of the connector is connected to the anode pin of the battery. After the charging pin receives the first output current signal from the output pin of the charging device, the charging pin transmits the first current signal to the anode pin of the battery to charge the battery.

It can be understood that a mobile device in this embodiment of the present invention can directly receive, using a connector, a high current provided by a charging device to shorten the charging time. In addition, there is no charging circuit that provides high current in the mobile device, but it exists in the charging device, which makes the mobile device only receive high current, so as to reduce heat loss as much as possible.

Optionally, an embodiment of the present invention further provides another charging method.

An analog switch is arranged between the battery anode pin and the charging pin. When the charging pin of the connector establishes a connection with the output pin of the charging device using a charging cable or battery charging stand, the analog switch connects the anode pin of the battery with the charging pin. In addition, the charging cable is specifically a current signal that can withstand high voltage and high current. As an example rather than a limitation, the charging cable can specifically support a high current signal of 25V/5A, and in addition, it can support a high current signal exceeding 25V/5A in a real application. .

The charging pin receives the first current signal transmitted by the output pin of the charging device.

Specifically, the charging pin receives, using a charging cable or a battery charging stand, the first output current signal from the output pin of the charging device.

It should be noted that in this embodiment of the present invention, the charging device is a charging device that provides electrical power and may be connected to a common power source. As an example rather than a limitation, the first current signal may specifically be a 5 A high current signal. The charging pin transmits the first current signal to the anode pin of the battery using the analog switch to charge the battery. battery.

Specifically, the analog switch connects the charging pin of the connector to the anode pin of the battery; Therefore, after receiving the first output current signal by the output pin of the charging device, the charging pin transmits the first current signal to the anode pin of the battery using the analog switch to charge the battery.

It can be understood that a mobile device in this embodiment of the present invention can directly receive, using a connector, a high current provided by a charging device to shorten the charging time. In addition, there is no charging circuit that provides high current in the mobile device, but it exists in the charging device, which makes the mobile device only receive high current, so as to reduce heat loss as much as possible.

Optionally, this embodiment of the present invention further includes a step where when the charging pin of the connector is disconnected from the output pin of the charging device, the battery can still be charged using a USB port. The mobile device can also exchange data with another mobile device using the USB port.

When the charging pin is disconnected from the output pin of the charging device, the analog switch disconnects the anode pin of the battery from the charging pin and an output pin of the charging circuit is connected to the anode pin of the battery using the analog switch.

An input pin of the charging circuit receives a second current signal using the USB port.

Specifically, the input pin of the charging circuit is connected to the USB port and receives the second current signal using the USB port.

Furthermore, in this embodiment of the present invention, the mobile device (such as a mobile phone or a tablet) may further be connected to another mobile device (such as a desktop computer or a laptop) using the USB port. The other mobile device may be connected to a common power source to provide electrical power for the mobile device in this embodiment of the present invention. As an example rather than a limitation, the second current signal may specifically be a 2 A low current signal.

The input pin of the charging circuit transmits the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch to charge the battery.

Specifically, the output pin of the charging circuit is connected to a voltage pin of the battery using the analog switch and the input pin of the charging circuit is connected to the USB port; Therefore, after receiving the second current signal using the USB port, the input pin of the charging circuit transmits the second current signal to the battery using the output pin of the charging device and the analog switch to charge the battery. battery.

It can be understood that a mobile device in this embodiment of the present invention can directly receive, using a connector, a high current provided by a charging device to shorten the charging time. In addition, there is no charging circuit that provides high current in the mobile device, but it exists in the charging device, which makes the mobile device only receive high current, so as to reduce heat loss as much as possible. In addition, the charging circuit in the mobile device is a charging circuit that can maintain the low current signal of 2A. Therefore, a heat loss of the mobile device can be further reduced.

Optionally, this embodiment of the present invention further includes a step of performing exchange communication by the mobile device with the charging device using a bus.

The controller generates bus data or a control signal.

Specifically, during the above process described in step 810 and step 820, after the mobile device establishes a connection with the charging device using a charging cable, charging is performed. During a charging process, when the controller determines that a first current signal provided by the charging device is so high that the mobile device cannot support it, the controller generates bus data or a control signal.

The controller transmits the bus data or control signal to a bus port of the charging device using a bus port and a single-wire or multi-wire bus pin of the connector, so that the charging device adjusts a first output current signal.

Therefore, through an application of the charging method provided in this embodiment of the present invention, a mobile device is connected to a charging device using a charging cable and receives a high current transmitted by the charging device to charge a mobile device battery. In addition, a charging circuit that provides high current is not included in the mobile device, but exists in the charging device, which makes the mobile device only receive high current, so as to reduce the heat loss of the mobile device. as much as possible. In addition, a problem of heat generation during a charging process of a mobile device is solved in the prior art, the mobile device is also adapted to a charging mode in which a supply voltage and a supply current have been increased. and, also, a solution is enriched in the prior art.

A person skilled in the art may also be aware that, in combination with the examples described in the embodiments disclosed in this specification, the algorithm units and steps may be implemented by electronic hardware, computer software or a combination of the themselves. In order to clearly describe the interchangeability between hardware and software, the above has generally described compositions and steps of each of the examples according to the functions. Whether the functions are realized by hardware or software depends on the particular applications and the design constraint conditions of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each of the particular applications, but the implementation should not be considered to go beyond the scope of the present invention.

The steps of the methods or algorithms described in the embodiments disclosed in this specification may be implemented by hardware, a software module executed by a processor, or a combination thereof. The software module may reside in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Additional embodiments of the present invention are provided below. It should be noted that the numbering used in the following section does not necessarily have to comply with the numbering used in the previous sections.

Embodiment 1. A mobile device, wherein the mobile device comprises a battery and a connector, wherein the connector comprises a charging pin and a ground pin; and

When the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin of the charging device. charges and transmits the first current signal to an anode pin of the battery, to charge the battery.

Embodiment 2. The mobile device according to embodiment 1,

wherein the mobile device further comprises an analog switch;

When the charging pin establishes a connection with the output pin of the charging device using a charging cable or battery charging stand, the analog switch connects the anode pin of the battery with the charging pin; and

The charging pin receives the first current signal transmitted by the output pin of the charging device and transmits the first current signal to the anode pin of the battery using the analog switch to charge the battery.

Embodiment 3. The mobile device according to embodiment 2,

wherein the mobile device further comprises a charging circuit and a USB universal serial bus port;

When the charging pin is disconnected from the output pin of the charging device, the analog switch disconnects the anode pin of the battery from the charging pin, and an output pin of the charging circuit is connected to the anode pin of the battery using the analog switch; and

An input pin of the charging circuit is connected to the USB port, receives a second current signal transmitted by the USB port, and transmits the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch, to charge the battery.

Embodiment 4. The mobile device according to any of embodiments 1 to 3, wherein the mobile device further comprises a controller and a voltage conversion circuit, wherein with one end connected to the charging pin and the other end connected to the controller, the voltage conversion circuit is configured to: when the charging pin establishes a connection with the output pin of the charging device using a charging cable or a battery charging stand, convert a voltage of the charging pin and then transmit a converted voltage to the controller.

Embodiment 5. The mobile device according to embodiment 4, wherein the controller further comprises a bus port, and the connector further comprises a single-wire or multi-wire bus pin, wherein the port The bus pin is connected to the single-wire or multi-wire bus pin of the connector using a bus and is configured to transmit bus data or a control signal generated by the controller, so that the charging device adjusts the first signal. output current after receiving the bus data or control signal.

Embodiment 6. The mobile device according to any one of embodiments 1 to 5, wherein the ground pin is connected to a first ground pin of the charging device using the charging cable or the battery charging stand; and

the ground pin, a ground pin of the battery and a ground pin of the charging circuit, are connected together.

Embodiment 7. The mobile device according to any one of embodiments 1 to 6, wherein the connector is, specifically, a multi-pin port, a multi-pin port, or a port multiplexed with the USB port using the analog switch.

Embodiment 8. A charging device, wherein the charging device comprises a charging switch module and a charging circuit, wherein

The charging circuit comprises an input pin and an output pin;

the input pin is connected to an output pin of the switch charger module and is configured to receive a first current signal transmitted by the output pin of the switch charger module; and the output pin establishes a connection with a charging pin of a mobile device using a charging cable or a battery charging stand, to use the first current signal to charge a battery of the mobile device.

Embodiment 9. The charging device according to embodiment 8, wherein the charging circuit further comprises a bus port, wherein

The bus port is connected to a single-wire or multi-wire bus pin of a connector on the mobile device by using a bus, and is configured to receive bus data or a control signal transmitted by the device. mobile; and

The charging circuit is further configured to adjust the first current signal according to the bus data or the control signal.

Embodiment 10. The charging device according to embodiment 8 or 9, wherein the charging circuit further comprises a first ground pin and a second ground pin; where

the first ground pin is connected to a ground pin of the mobile device using the charging cable or battery charging stand; and the second ground pin is connected to a ground pin of the switch charger module.

Embodiment 11. The charging device according to any of embodiments 8 to 10, wherein the charging circuit is specifically a switch charging circuit or a linear charging circuit.

Embodiment 12. A loading method, wherein the method comprises:

receive, via a charging pin of a connector when the charging pin establishes a connection with an output pin of a charging device using a charging cable or a battery charging stand, a first current signal transmitted by the pin charging device output; and

transmit, through the charging pin, the first current signal to an anode pin of the battery, to charge the battery.

Embodiment 13. The charging method according to embodiment 12, wherein after receiving, by a charging pin of a connector when the charging pin establishes a connection to an output pin of a charging device using a cable charging device or a battery charging stand, a first current signal transmitted by the output pin of the charging device, and before transmitting, by the charging pin, the first current signal to an anode pin of the battery , the method also comprising: connecting, using an analog switch, the anode pin of the battery to the charging pin.

Embodiment 14. The charging method according to embodiment 13, wherein the method further comprises: when the charging pin is disconnected from the output pin of the charging device, disconnecting, by means of the analog switch, the anode pin of the battery from the charging pin, and connecting an output pin of a charging circuit to the anode pin of the battery using the analog switch;

receiving, through an input pin of the charging circuit, a second current signal using a USB port; and transmitting, through the input pin of the charging circuit, the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch, to charge the battery.

Embodiment 15. The loading method according to any of embodiments 12 to 14, wherein the method further comprises:

generating, by means of a controller, bus data or a control signal; and

transmitting, through the controller, the bus data or the control signal to the charging device, so that the charging device adjusts the first output current signal.

Embodiment 16. A charging system, wherein the charging system comprises the mobile device according to any of embodiments 1 to 7 and the charging device according to any of embodiments 8 to 11.

In the above specific embodiments, the objective, technical solutions and benefits of the present invention are described in more detail. It should be understood that the above descriptions are only specific ways of implementing the present invention, but are not intended to limit the scope of protection of the present invention.

Claims (14)

1. A mobile device, wherein the mobile device comprises a battery (110), a universal serial bus, a USB port (320), a connector (120) and a controller (410), wherein the USB port (320 ) is configured to exchange data between the mobile device and an external device, or charge the mobile device; where the connector (120) comprises a load pin (V1) and a ground pin (G1); and when the charging pin (V1) establishes a connection with an output pin of a charging device, using a charging cable or a battery charging stand, the charging pin (V1) receives a first transmitted current signal through the output pin of the charging device, and transmits the first current signal to an anode pin of the battery (110), to charge the battery (110); characterized in that: The controller (410) is configured to generate a control signal and transmits the control signal to the charging device so that the charging device adjusts the first current signal based on a charging curve of the battery (110), in where the charging curve is a characteristic charging curve of the battery (110). 2. The mobile according to claim 1, wherein the mobile device further comprises: a charging circuit (310); the charging pin (V1) being connected to the battery (110) through the charging circuit (310). 3. The mobile device according to claim 2, wherein the mobile device further comprises an analog switch (210); When the charging pin (V1) establishes a connection with the output pin of the charging device, using a charging cable or a battery charging stand, the analog switch connects the battery anode pin (110) to the pin load (V1); and the charging pin (V1) receives the first current signal transmitted by the output pin of the charging device, and transmits the first current signal to the anode pin of the battery (110) using the analog switch, to charge the battery (110). 4. The mobile device according to claim 3, wherein the charging circuit (310) comprises an output pin and an input pin; When the charging pin (V1) is disconnected from the output pin of the charging device, the analog switch disconnects the battery anode pin (110) from the charging pin (V1), and the output pin of the charging circuit (310) connects to the battery anode pin (110) using the analog switch; and The input pin of the charging circuit (310) is connected to the USB port (320), receives a second current signal transmitted by the USB port (320) and transmits the second current signal to the battery anode pin (110). ) using the output pin of the charging circuit (310) and the analog switch, to charge the battery (110). 5. The mobile device according to any of claims 1 to 4, wherein the mobile device further comprises a voltage converter circuit, wherein with one end connected to the load pin (V1) and the other end connected to the controller (410), the voltage conversion circuit is configured to: when the load pin (V1) establishes a connection with the output pin of the device charging using a charging cable or a battery charging stand, convert a voltage of the charging pin (V1) and then transmit a converted voltage to the controller (410). 6. The mobile device according to any of claims 1 to 5, wherein the ground pin (V2) is connected to a first ground pin of the charging device using the charging cable or the battery charging stand. ; and the ground pin (G1), a ground pin (G2) of the battery and a ground pin (G3) of the charging circuit (310) are connected to each other. 7. The mobile device according to any of claims 1 to 2, wherein the controller (410) detects, through the use of a USB identification pin, whether the mobile device is connected to a computer or other USB device. 8. The mobile device according to any of claims 1 to 7, wherein the battery (110) of the mobile device receives a current signal based on the charging curve of the battery (110); wherein when the battery level is less than a certain electricity capacity, the battery (110) receives a low current from the charging device; When the battery level is greater than a certain electricity capacity, the battery (110) receives a higher current from the charging device. 9. A loading method, wherein the method comprises: receive (810), by a charging pin of a connector when the charging pin establishes a connection to an output pin of a charging device using a charging cable or a battery charging holder, a first transmitted current signal through the output pin of the charging device; and transmitting (820), via the charging pin, the first current signal to an anode pin of a battery, to charge the battery; characterized in that: sending a control signal to the charging device so that the charging device adjusts the first current signal based on a battery charging curve, wherein the charging curve is a battery charging characteristic curve. 10. The charging method according to claim 9, wherein after receipt, by a charging pin of a connector when the charging pin establishes a connection to an output pin of a charging device by using a charging cable or a battery charging stand, a first current signal transmitted by the output pin of the charging device, and before transmitting, through the charging pin, the first current signal to an anode pin of a battery, the method further comprises: connecting, via an analog switch, the anode pin of the battery to the charging pin. 11. The charging method according to claim 10, wherein the method further comprises: when the charging pin is disconnected from the output pin of the charging device, disconnecting, by means of the analog switch, the anode pin of the battery of the charging pin, and connecting an output pin of a charging circuit to the anode pin of the battery using the analog switch; receiving, through an input pin of the charging circuit, a second current signal using a USB port; and transmitting, through the input pin of the charging circuit, the second current signal to the anode pin of the battery using the output pin of the charging circuit and the analog switch, to charge the battery. 12. The method according to any of claims 10 to 11, further comprising: detect, using a USB identification pin, whether the mobile device is connected to a computer or another USB device. 13. The method according to any of claims 10 to 12, further comprising: when the battery level is less than a certain electricity capacity, receive a low current from the charging device; When the battery level is greater than a certain electricity capacity, receive a higher current from the charging device. 14. A charging system, wherein the charging system comprises the mobile device according to any one of claims 1 to 8 and a charging device.